Disclosed is a method using at least one anti-wear additive in an oil, the at least one anti-wear additive including at least one polyphosphorus compound to reduce and/or prevent the neurotoxicity of the oil or for the prophylaxis of aerotoxic syndrome, preferably in case of fume event.

The invention relates to the use of an oil that does not include tricresyl phosphate and includes as an anti-wear additive at least one diphosphorus compound for the prophylaxis of aerotoxic syndrome, especially in case of fume event. It also relates to the oil as such.

The invention relates to the use of an oil that does not include tricresyl phosphate and includes as an anti-wear additive at least one diphosphorus compound for the prophylaxis of aerotoxic syndrome, especially in case of fume event. It also relates to the oil as such.

Disclosed is an oil that does not include tricresyl phosphate and includes as an anti-wear additive at least one diphosphorus compound for the prophylaxis of aerotoxic syndrome, especially in case of fume event. It also relates to a lubrication method utilizing such oil.

Disclosed is an oil that does not include tricresyl phosphate and includes as an anti-wear additive at least one diphosphorus compound for the prophylaxis of aerotoxic syndrome, especially in case of fume event. It also relates to a lubrication method utilizing such oil.

A lubricating oil base oil may include a solid surface distance of 1.0 nm or more at a surface pressure of 12.4 MPa and a normalized peak intensity ratio of more than 0.2 to 1.0 measured using a resonance shear measurement system and a lubricating oil composition may include the lubricating oil base oil.

A lubricating oil base oil may include a solid surface distance of 1.0 nm or more at a surface pressure of 12.4 MPa and a normalized peak intensity ratio of more than 0.2 to 1.0 measured using a resonance shear measurement system and a lubricating oil composition may include the lubricating oil base oil.

A refrigerant compressor includes: a sealed container in which refrigerating machine oil is stored; an electric element accommodated in the sealed container and driven by electric power supplied from outside; and a compression element accommodated in the sealed container and covered with the refrigerating machine oil, the compression element being driven by the electric element to compress refrigerant gas supplied from outside. The refrigerating machine oil contains an oil film shortage adjusting agent in a dissolved state in such a concentration that deposition of the oil film shortage adjusting agent does not occur at least while the refrigerant compressor is operating.

A refrigerant compressor includes: a sealed container in which refrigerating machine oil is stored; an electric element accommodated in the sealed container and driven by electric power supplied from outside; and a compression element accommodated in the sealed container and covered with the refrigerating machine oil, the compression element being driven by the electric element to compress refrigerant gas supplied from outside. The refrigerating machine oil contains an oil film shortage adjusting agent in a dissolved state in such a concentration that deposition of the oil film shortage adjusting agent does not occur at least while the refrigerant compressor is operating.

A medical lubricant may comprise a base oil. The medical lubricant can be used on a surgical device.